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PCA9515A

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Datasheet

PCA9515A
(Product Specification)
11-Apr-08, 18 pages, 104 kB

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PCA9515A - I2C-bus repeater

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

The PCA9515A is a CMOS integrated circuit intended for application in I2C-bus and SMBus systems.

While retaining all the operating modes and features of the I2C-bus system, it permits extension of the I2C-bus by buffering both the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF.

The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9515A enables the system designer to isolate two halves of a bus, thus more devices or longer length can be accommodated. It can also be used to run two buses, one at 5 V and the other at 3.3 V or a 400 kHz and 100 kHz bus, where the 100 kHz bus is isolated when 400 kHz operation of the other is required.

Two or more PCA9515As cannot be put in series. The PCA9515A design does not allow this configuration. Since there is no direction pin, slightly different 'legal' low voltage levels are used to avoid lock-up conditions between the input and the output. A 'regular LOW' applied at the input of a PCA9515A will be propagated as a 'buffered LOW' with a slightly higher value. When this 'buffered LOW' is applied to another PCA9515A, PCA9516A or PCA9518/A in series, the second PCA9515A, PCA9516A or PCA9518/A will not recognize it as a 'regular LOW' and will not propagate it as a 'buffered LOW' again. The PCA9510/A, PCA9511/A, PCA9512/A, PCA9513/A, PCA9514/A cannot be used in series with the PCA9515A, PCA9516A or PCA9518/A, but can be used in series with themselves since they use shifting instead of static offsets to avoid lock-up conditions.

The output pull-down of each internal buffer is set for approximately 0.5 V, while the input threshold of each internal buffer is set about 0.07 V lower, when the output is internally driven LOW. This prevents a lock-up condition from occurring.

Features

  • 2-channel, bidirectional buffer
  • I2C-bus and SMBus compatible
  • Active HIGH repeater enable input
  • Open-drain input/outputs
  • Lock-up free operation
  • Supports arbitration and clock stretching across the repeater
  • Accommodates Standard-mode and Fast-mode I2C-bus devices and multiple masters
  • Powered-off high-impedance I2C-bus pins
  • Operating supply voltage range of 2.3 V to 3.6 V
  • 5.5 V tolerant I2C-bus and enable pins
  • 0 Hz to 400 kHz clock frequency (the maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater)
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Packages offered: SO8 and TSSOP8 (MSOP8)

Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
PCA9515ADPCA9515AD,1129352 767 66112Volume productionSOT96TubeStandard Marking
PCA9515ADPCA9515AD,1189352 767 66118Volume productionSOT96Reel Pack, SMD, 13"Standard Marking
PCA9515ADPPCA9515ADP,1189352 759 98118Volume productionSOT505Reel Pack, SMD, 13"Standard Marking
PCA9515ADP/DGPCA9515ADP/DG,1189352 858 93118Volume productionSOT505Reel Pack, SMD, 13"Standard Marking

Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL
PCA9515ADPCA9515AD,112PCA9515AD
week 5, 2005
PCA9515ADPCA9515AD,118PCA9515AD
week 5, 2005
PCA9515ADPPCA9515ADP,118PCA9515ADP
week 12, 2005
PCA9515ADP/DGPCA9515ADP/DG,118PCA9515ADP_DG
Always Pb-free

Quality and reliability disclaimer

Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
PCA9515AD9352 767 66112  PCA9515AD,112  1.0200NAARROW ELECTRONICS1,577 11/6/2009Buy onlinenot available
    NADIGI-KEY CORPORATION884 11/7/2009Buy online 
    NAFUTURE ELECTRONICS1,850 11/7/2009Buy online 
PCA9515AD9352 767 66118  PCA9515AD,118  1.0200ASIASAC - Taiwanyes250011/08/2009Buy onlineOrder samples
    NADIGI-KEY CORPORATION345 11/7/2009Buy online 
PCA9515ADP9352 759 98118  PCA9515ADP,118  1.0200ASIASAC - Taiwanyes250011/08/2009Buy onlineOrder samples
    ASIAWPI7,500250011/07/2009Buy online 
    NAAVNET ELECTRONICS MARKETING2,095 11/7/2009Buy online 
PCA9515ADP/DG9352 858 93118  PCA9515ADP/DG,118  NAARROW ELECTRONICS2,500 11/6/2009Buy onlinenot available
    NAFUTURE ELECTRONICS2,435 11/7/2009Buy online 

Block diagrams/pinning

Parametrics/similar products

Type numberPackageOperating
temp.(Cel)
I²C-bus(kHz)Operating voltage(VDC)InputsOutputs
PCA9515ADSOT96
-40~854002.3~3.611
PCA9515ADPSOT505
-40~854002.3~3.611
PCA9515ADP/DGSOT505
-40~854002.3~3.611